When running the AP_EMAIL_ADV process not all emails are sending successfully

When running the AP_EMAIL_ADV process as part of the paycycle process, the process itself is running to success but not all emails are sent successfully. There might be 1,000 emails total and the first 400 emails will get sent successfully but then the next 100 emails fail and then the remaining 500 emails are successful. Is there a way to rerun the process for a supplier range? I know you can navigate to FSCM>Accounts Payable>Payments>Pay Cycle Processing>Email Payment Advice and choose to process for all suppliers and check the bypass suppliers checkbox and you are able to select one single